I've made my son a couple of dolls and just recently he's really started to get into them (he's 32 months). One thing I read that sounded plausible to me is that, esp. with boys, you really have to model doll play to get them into it. Otherwise Finn is very interested in tools and machines and appliances, so he doesn't seem intrinsically inclined toward dolls. But I think that making the dolls for him has made me much more "invested" in them: I don't have to try to love them, I truly do love them! So my interest and enthusiasm does seem to have sparked his. He doesn't cuddle them a ton, but he loves having me use them kind of like puppets to pretend to do ordinary activities (mow the lawn, water the flowers, pet the stuffed animals, cook dinner, etc.)
BTW, I wasn't much of a doll girl myself, so it's kind of new for me too.
Also, he loves his dollhouse and all the stuff in there. Making rugs and blankets and even food and dishes or other stuff for the dollhouse out of felt is super easy and fun to do together.